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Geeky things I'm up to

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retro 720p GPU addendum

I recently took the time to learn more about the graphics processors of the Sega Genesys & SNES and realized that my previous "retro 720p GPU" had a little too much Atari 7800 in it's design.  Really, if someone wanted to create an HD 2D GPU they really should start with the SNES (or the GBA or NDS) PPU as these really represent the ultimate in 2D GPU design.  However, IMHO there will be three main challenges which the designer will need to address: 720p has a 74.23MHz pixel clock (v


EricBall in MAME

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